My manuals for CLK55 and E430 list the fogs as H1 but are actually H3s. High Beams are H7s and I've swapped them for PIAA extreme whites.
(Both cars have Xenons)
I've talked to 4 other owners and they all said the same, spec'd as H1 but actually H3s.
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'02 CLK55AMGcab going soon May05
'02 E430SE
'01 CL 600
'94 Mini Cooper German Spec
'72 Morris Cooper S AutoX
'67 Austin Cooper S
'66 MG 1100
'63 Austin Cooper
'04 Denali